Announcement (2017-05-07): www.ruby-forum.com is now read-only since I
unfortunately do not have the time to support and maintain the forum any
more. Please see rubyonrails.org/community and ruby-lang.org/en/community
for other Rails- und Ruby-related community platforms.

When I run the following 10-line ruby script on 1.8.6-p230
as shipped (built on 32-bit x86 Debian Etch, with configure
arguments at defaults), it pretty reliably segfaults. My
patch to get rails working (by reverting changeset 17222
on the ruby_1_8_6 branch) eliminates this problem as well,
so this *may* be the simplest demonstration of the problem
that's been killing Rails apps on this Ruby release.
The script:
obj = Object.new
class << obj
def meth(x, y)
end
end
10000.times do
obj = obj.clone
end